Welcome to the Tri-Dam ProjectTri-Dam Project is a partnership between the Oakdale Irrigation District and the South San Joaquin Irrigation District.
Golden Mussel & Aquatic Invasive Species (AIS) InformationTri-Dam Project is actively working to prevent the introduction and spread of aquatic invasive species, including the Golden Mussel, which was recently discovered in California.
Road ConditionsRoad status conditions (open to public travel or closed to public travel) are available on this website. Tri-Dam staff accesses these roads on a daily basis using tracked vehicles and heavy equipment…
Tulloch Reservoir Permitting ProcessAs noted above, Tri-Dam is required through its license with the Federal Energy Regulatory Commission (FERC) to review and authorize any activity in and around the reservoir within the boundaries…